In some examples, an apparatus obtains source layer pixels, such as those of a content image and first destination layer pixels, such as those of a destination image. The first destination layer pixels have associated alpha values. The apparatus obtains information that indicates a first blending color format for the alpha values. The first blending color format is different from a first destination layer color format for the first destination layer pixels and an output color format for a display. The apparatus converts the source and/or first destination layer pixels to the first blending color format. The apparatus generates first alpha blended pixels based on alpha blending the source layer pixels with the first destination layer pixels using the associated alpha values. The apparatus provides, for display on the display, the first alpha blended pixels.
Legal claims defining the scope of protection, as filed with the USPTO.
10. The method of claim 9, wherein the first blending gamma space is a linear gamma space and the transfer function is a gamma transfer function.
20. The method of claim 8, wherein the converting the at least one of the plurality of source layer pixels and the plurality of first destination layer pixels comprises high dynamic ranges (HDR) tone mapping at least one of the plurality of source layer pixels and the plurality of first destination layer pixels.
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October 24, 2022
July 9, 2024
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